Question

Cells Are Us charges $5 per month and $1.50 per minute on their prepaid plan. The total cost for a cell bill can be represented by the equation C = 1.5m + 5, where m represents the number of minutes and C represents the cost, in dollars. Call Time charges $15 per month and $0.50 per minute on their prepaid plan. The total cost for a cell bill can be represented by the equation C = 0.5m + 15, where m represents the number of minutes and C represents the cost, in dollars. 1 At how many minutes do the two companies charge the same amount?

Answer 1

Answer:

10 minutes

Step-by-step explanation:

You set the two equations to be equal. You will get an equation in the unknown m that gives the time needed

$1.5m+5 = 0.5m+15 \rightarrow 1.0m = 10 m=10$.

Takes 10 minutes for the two companies to be as expensive.